2018 Mazda Mazda3 problems and complaints
Owners have filed 109 complaints with NHTSA about the 2018 Mazda Mazda3. The most-reported areas: Electrical System (30), Unknown Or Other (26), Visibility/Wiper (16).
Key takeaways
- 109 owner complaints on file with NHTSA.
- 6 involve a crash, 0 a fire, 5 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Electrical System | 30 | 28% |
| Unknown Or Other | 26 | 24% |
| Visibility/Wiper | 16 | 15% |
| Back Over Prevention | 15 | 14% |
| Engine | 12 | 11% |
| Fuel/Propulsion System | 7 | 6% |
| Service Brakes | 6 | 6% |
| Power Train | 5 | 5% |
| Forward Collision Avoidance | 5 | 5% |
| Fuel System | 4 | 4% |
| Gasoline | 4 | 4% |
| Lane Departure | 4 | 4% |
One complaint can name several components, so shares add up to more than 100%.
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2018 Mazda Mazda3 4 DR FWD | 5/5 | 5/5 | 5/5 | 4/5 |
| 2018 Mazda Mazda3 5 HB FWD | 5/5 | 5/5 | 5/5 | 4/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Engine And Engine Cooling,fuel System, Gasoline - filed 2026-10-13
The contact owns a 2018 Mazda Mazda3. The contact stated that while driving uphill at 45 MPH, the vehicle sputtered, hesitated to accelerate, and the check engine warning light illuminated. When the contact firmly depressed the accelerator pedal, the engine made a knocking noise, and the vehicle stalled. Diagnostic tes...
Unknown Or Other - filed 2026-08-26
The sunroof spontaneously shattered while I was driving. It sounded like a small explosion. I am positive that no object struck the vehicle.
Visibility/Wiper - filed 2026-06-05
The contact called on behalf of a customer who owns a 2018 Mazda Mazda3. The contact stated that the windshield wipers had become inoperable. The vehicle was taken to the contact's auto repair shop, Tire-Rama, where the windshield wiper switch was replaced; however, the failure persisted. Upon investigation, the contac...
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More for the 2018 Mazda Mazda3
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.